In our Lodges the Immediate Past Master wears, pendant from his collar, the Jewel of his Office, a silver replica of the diagram of the 47th Proposition of the First Book of Euclid.
This suggests the importance in the consideration of our Craft of this, the Theorem of Pythagoras.
Title
1971 - Forming the Fourth Part of a Circle - Bro. J. E. V. CHUBB.
